<template>
  <div id="app">
    <a-input placeholder="请输入任务" class="my_ipt"  :value="value" @change="handleInputChange"/>
    <a-button type="primary" @click="addItem">添加事项</a-button>

    <a-list bordered :dataSource="infolist" class="dt_list">
      <a-list-item slot="renderItem" slot-scope="item">
        <!-- 复选框 -->
        <a-checkbox :checked="item.done" @change="(e)=>(checkboxChange(e,item))">{{item.info}}</a-checkbox>
        <!-- 删除链接 -->
        <a slot="actions" @click="delteItem(item)">删除</a>
      </a-list-item>

      <!-- footer区域 -->
      <div slot="footer" class="footer">
        <!-- 未完成的任务个数 -->
        <span>{{unDoneLength}}条剩余</span>
        <!-- 操作按钮 -->
        <a-button-group>
          <a-button :type="viewKey=== 'all' ? 'primary' : 'default'" @click="changeList('all')">全部</a-button>
          <a-button :type="viewKey=== 'undone' ? 'primary' : 'default'" @click="changeList('undone')">未完成</a-button>
          <a-button :type="viewKey=== 'done' ? 'primary' : 'default'" @click="changeList('done')">已完成</a-button>
        </a-button-group>
        <!-- 把已经完成的任务清空 -->
        <a @click="clearChecked">清除已完成</a>
      </div>
    </a-list>
  </div>
</template>

<script>
import {mapState,mapGetters} from 'vuex'
export default {
  name: 'app',
  data() {
    return {

    }
  },
  methods:{
    handleInputChange(e)
    {
      this.$store.commit('setInputValue',e.target.value);
    },
    addItem()
    {
      if(this.value.trim().length == 0)
      {
       return this.$message.warning("文本框内容不能为空")
      }else{
          
          this.$store.commit('addListItem')
      }
      
    },
    delteItem(obj)
    {
      this.$store.commit("delteListItem",obj.id)
    },
    checkboxChange(e,item){
        let obj ={
          checked:e.target.checked,
          id:item.id
        }
        this.$store.commit("itemChanged",obj)

    },
    clearChecked()
    {
       this.$store.commit("clearChecked")
    },
    changeList(key)
    {
        this.$store.commit('changeViewKey',key)
    }
  },
  created(){
      this.$store.dispatch("getList");
  },
  computed:{
    ...mapState(["value","viewKey"]),
    ...mapGetters(['unDoneLength','infolist'])
  }
}
</script>

<style scoped>
#app {
  padding: 10px;
}

.my_ipt {
  width: 500px;
  margin-right: 10px;
}

.dt_list {
  width: 500px;
  margin-top: 10px;
}

.footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
</style>
